255746505

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1878

約数の個数: 64

約数和(自身を含む): 494346240

約数和(自身を除く): 238599735

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 47, 87, 105, 141, 145, 203, 235, 329, 435, 609, 705, 987, 1015, 1363, 1645, 1787, 3045, 4089, 4935, 5361, 6815, 8935, 9541, 12509, 20445, 26805, 28623, 37527, 47705, 51823, 62545, 83989, 143115, 155469, 187635, 251967, 259115, 362761, 419945, 587923, 777345, 1088283, 1259835, 1763769, 1813805, 2435681, 2939615, 5441415, 7307043, 8818845, 12178405, 17049767, 36535215, 51149301, 85248835, 255746505]

約数ペア:

[(1, 255746505), (3, 85248835), (5, 51149301), (7, 36535215), (15, 17049767), (21, 12178405), (29, 8818845), (35, 7307043), (47, 5441415), (87, 2939615), (105, 2435681), (141, 1813805), (145, 1763769), (203, 1259835), (235, 1088283), (329, 777345), (435, 587923), (609, 419945), (705, 362761), (987, 259115), (1015, 251967), (1363, 187635), (1645, 155469), (1787, 143115), (3045, 83989), (4089, 62545), (4935, 51823), (5361, 47705), (6815, 37527), (8935, 28623), (9541, 26805), (12509, 20445)]